EP 2548736 A1 20130123 - POROUS POLYOLEFIN RESIN FILM AND SEPARATOR FOR BATTERY
Title (en)
POROUS POLYOLEFIN RESIN FILM AND SEPARATOR FOR BATTERY
Title (de)
PORÖSER POLYPROPYLENHARZFLIM UND SEPARATOR FÜR EINE BATTERIE
Title (fr)
FILM EN RÉSINE DE POLYOLÉFINE DE TYPE POREUX ET SÉPARATEUR POUR BATTERIE
Publication
Application
Priority
- JP 2010062202 A 20100318
- JP 2011056070 W 20110315
Abstract (en)
As an object of the present invention, to provide a polyolefin resin porous film fulfilling high continuity, excellent dimensional stability and shutdown function which closes the pores sensitively and completely in a temperature range of 120 to 140°C without closing the pores at less than 120°C. The present invention relates to a polyolefin resin porous film having at least one layer each of a layer comprising as the main component a polypropylene resin composition (A) and a layer comprising as the main component a polyethylene resin composition (B) fulfilling the condition (i) the melting point of the polyethylene resin composition (B) is 130°C or higher, and the condition (ii) the melt flow rate (MFR) of the polyethylene resin composition (B) is 2.0 to 15 g/10 minutes.
IPC 8 full level
B32B 27/32 (2006.01); B32B 5/32 (2006.01); H01M 50/417 (2021.01); H01M 50/449 (2021.01); H01M 50/489 (2021.01); H01M 50/491 (2021.01)
CPC (source: EP KR US)
B32B 5/18 (2013.01 - KR); B32B 27/08 (2013.01 - EP KR US); B32B 27/32 (2013.01 - EP KR US); H01M 50/411 (2021.01 - KR); H01M 50/417 (2021.01 - EP KR US); H01M 50/449 (2021.01 - EP KR US); H01M 50/489 (2021.01 - EP KR US); H01M 50/491 (2021.01 - EP KR US); B32B 2307/734 (2013.01 - EP KR US); Y02E 60/10 (2013.01 - EP KR); Y10T 428/249981 (2015.04 - EP US); Y10T 428/263 (2015.01 - EP US); Y10T 428/264 (2015.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2548736 A1 20130123; EP 2548736 A4 20140514; CN 102791485 A 20121121; JP 2011194650 A 20111006; KR 20120104425 A 20120920; US 2013017430 A1 20130117; WO 2011115117 A1 20110922
DOCDB simple family (application)
EP 11756302 A 20110315; CN 201180013341 A 20110315; JP 2010062202 A 20100318; JP 2011056070 W 20110315; KR 20127020764 A 20110315; US 201113635758 A 20110315